APPENDIX D  AIR QUALITY MONITORING RESULTS FOR FEBRUARY 2002

 

Site: Lamma Power Station Extension

 

Month: February 2002

 

24 hour TSP Measurement:-

Date

TSP concentration (mg/m3)

Weather Information

(From Hong Kong Observatory)

Reservoir

 

(AM1)

East

Gate

(AM2)

Ash Lagoon

 

(AM3)

Tai Yuen Village

(AM4)

Mean Wind Speed

(km/hr)

Prevailing Wind Dir.

()

Mean R.H.

 

(%)

04/02/2002

92

87

102

103

30.1

070

74

10/02/2002

103

100

117

104

23.6

020

74

16/02/2002

46

43

47

50

24.9

060

75

22/02/2002

43

35

55

43

9.6

030

78

28/02/2002

34

37

35

42

11.6

040

83

 

1 hour TSP Measurement:-

Date

Time

TSP concentration (mg/m3)

Reservoir

(AM1)

East Gate

(AM2)

Ash Lagoon

(AM3)

04/02/2002

15:00-15:59

94

82

79

16:00-16:59

80

73

74

17:00-17:59

77

74

72

10/02/2002

15:00-15:59

28

36

40

16:00-16:59

61

43

45

17:00-17:59

50

34

35

16/02/2002

15:00-15:59

41

40

35

16:00-16:59

65

47

41

17:00-17:59

31

30

34

22/02/2002

15:00-15:59

33

35

27

16:00-16:59

43

39

43

17:00-17:59

41

49

33

28/02/2002

15:00-15:59

27

24

29

16:00-16:59

27

34

17

17:00-17:59

31

34

31

Remark:

(1)                 The monitoring stations, Reservoir, East Gate & Ash Lagoon are located within Lamma Power Station.

 

 

                                                                        1-hr TSP                24-hr TSP

                                                                          (mg/m3)                   (mg/m3)

Action Level                                                      340                          190

Limit Level                                                          500                          260

 

 

Calibration:            Calibration details are shown in appendix G.

 

 

Equipment used:

Location

1-hr TSP

24-hr TSP

Reservoir and East Gate

TEOM 1400a

High Volume Air Sampler

Ash Lagoon

Partisol Model 2000 Sampler

Tai Yuen Village

-

MINIVOL Portable Sampler